Dr. HAROLD L. AMOSS, of Greenwich, Conn., physician and former professor of medicine at Duke University, died last November at Greenwich Hospital. He was 70.

A physician in Greenwich for 23 years, Dr. Amoss received a medical degree from Harvard University in 1911, after obtaining his undergraduate degree from the University of Kentucky in 1905 and an M.S. degree from UK in 1907. He also held a degree in public health from Harvard and an honorary Sc. D. degree from George Washington University.

An instructor in preventative medicine at Harvard from 1909 to 1912, Dr. Amoss was associate professor of medicine at Johns Hopkins from 1922 to 1930 and professor of medicine at Duke University from 1930 to 1933. He served as a major in the Army Medical Corps during World War I.

Survivors include his wife, the former Marguerite Moore, of Athens, Ga., and two sons.

Dr. Amoss was a specialist in internal medicine, and an authority on poliomyelitis and other diseases. He was the author of about 60 original articles on bacteriology, immunology, pathology and clinical medicine. He produced the anti-serum for meningococic meningitis and erysipelas.

Dr. Amoss was a member of Pi Kappa Alpha social fraternity, Phi Chi, Phi Beta Kappa and Sigma Xi.

Before obtaining his medical degree he served as an assistant chemist at the UK Experiment Station and had also served with the hygienic laboratory of the U.S. Public Health Service and the Bureau of Chemistry of the Department of Agriculture. For 10 years he was an assistant associate member of the Rockerfeller Institute.

Since 1933 he has been consultant in medicine to the Grasslands, White Plains, Greenwich, United and North Westchester Hospitals. He also had been director of the Gaylord Sanitarium. During World War II he was chairman of the Fairfield County (Conn.) Medical Advisory Board.